class Person {
private String name;
private int age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge(){
return this.age;
}
public void setAge(int age){
if (age < 0 || age > 100){
throw new IllegalArgumentException("invalid age value");
}
this.age = age;
}
}
友谊NASA